1 files changed, 71 insertions, 0 deletions
diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h
new file mode 100644
index 00000000..51cc3f59
--- /dev/null
+++ b/include/linux/mtd/cfi_endian.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright © 2001-2010 David Woodhouse <dwmw2@infradead.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <asm/byteorder.h>
+
+#ifndef CONFIG_MTD_CFI_ADV_OPTIONS
+
+#define CFI_HOST_ENDIAN
+
+#else
+
+#ifdef CONFIG_MTD_CFI_NOSWAP
+#define CFI_HOST_ENDIAN
+#endif
+
+#ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
+#define CFI_LITTLE_ENDIAN
+#endif
+
+#ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
+#define CFI_BIG_ENDIAN
+#endif
+
+#endif
+
+#if defined(CFI_LITTLE_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) cpu_to_le16(x)
+#define cpu_to_cfi32(x) cpu_to_le32(x)
+#define cpu_to_cfi64(x) cpu_to_le64(x)
+#define cfi16_to_cpu(x) le16_to_cpu(x)
+#define cfi32_to_cpu(x) le32_to_cpu(x)
+#define cfi64_to_cpu(x) le64_to_cpu(x)
+#elif defined (CFI_BIG_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) cpu_to_be16(x)
+#define cpu_to_cfi32(x) cpu_to_be32(x)
+#define cpu_to_cfi64(x) cpu_to_be64(x)
+#define cfi16_to_cpu(x) be16_to_cpu(x)
+#define cfi32_to_cpu(x) be32_to_cpu(x)
+#define cfi64_to_cpu(x) be64_to_cpu(x)
+#elif defined (CFI_HOST_ENDIAN)
+#define cpu_to_cfi8(x) (x)
+#define cfi8_to_cpu(x) (x)
+#define cpu_to_cfi16(x) (x)
+#define cpu_to_cfi32(x) (x)
+#define cpu_to_cfi64(x) (x)
+#define cfi16_to_cpu(x) (x)
+#define cfi32_to_cpu(x) (x)
+#define cfi64_to_cpu(x) (x)
+#else
+#error No CFI endianness defined
+#endif